<template>
  <div class="app">
      <h4>这是App组件</h4>
      <child/>
  </div>
</template>

<script>
  import child from './components/child'
  export default {
    name:'App',
    components:{child},
    setup(){
    }
  }
</script>

<style scoped>
  .app{
    background-color: gray;
    padding: 15px;
  }
</style>
